Thill-coupling



(No Model.)

' G. W. POST.

THILL' GOUPLING.

No. 502,380. Patented Aug. 3.

UNITED 'STATES PATENT OFFICE.

GEORGE POST, OF FOND DU LAC, WISCONSIN.

THlLL-COUPLING.

SPECIFICATION forming part of Letters Patent No. 502,380,dated AugustA1, 1893. Application filed February l, 1893. Serial No. 460,533. (Nomodela .To a/ZZ whom it may concern.-

Be it known that I, GEORGE W. POST, a resident of Fond du Lac, in thecounty of Fond du Lac and State of Wisconsin, have invented certain newand useful Improvements in Thin-Couplings; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same. p

My invention relates to an improvement in thill couplings,-the object ofthe invention being to construct the device in such manner thatthethills will be automatically held in an upright position when it isdesired.

A further object is to so construct a thill l `coupling in such mannerthat a single spring will be employed for preventing the rattling of thethills and holding the same in an upright position when raised.

With these objects in view the invention consists in certain novelfeatures of construction and combinations and arrangements of parts ashereinafter set forth and pointed out in the claims.

In the accompanying drawings: Figure lis a view illustrating myinvention, showing the thills raised. Fig. 2 is Va similar View showingthe-thills in working position. Fig. 3 is a detail view of the spring.

A represents an axle, to which the clip B is secured. From the clip B,two arms or ears B project, and between these the iron C of the thill Dis mounted, said thill iron being provided with a curved recess a, for apurpose which will be presently explained. A spring D is insertedbetweenthe ears or arms B of the clip, and provided Vwith shoulders b, toproject above and below said arms 'ofr the thill iron, where it isprovided with.

a curved knob or enlargement ct', adapted,

when the thill isf raised, to enter the curved .recess ain the thilliron` C, and thus retain materially aecting the functions of the defvice.

The device above described is exceedingly simple in construction, cheapto manufacture and effectual in the performance of its functions.

Having fully described my invention, what 'I claim as new, and desire tosecure by Letters Patent, is-

l. The combination with a clip, and thill iron adapted to be attached tothe clip, of a springthe ends of which are approximately parallel witheach other and adapted to beinserted between and bear outwardly againstthe clip and the ihill iron, and one end of the spring provided withaprojection adapted t0 enter a notch in the thill iron whereby the latteris locked against turning, substantially as set forth.

2. In a tliillcoupling, the combinationwith a clip, and a thill ironhaving a notch formed therein, of a detachable spring, said springhaving shoulders thereon adapted to overlap the upper and lower edges ofthe arms or ears of Vthe clip and the opposite end provided with aprojection adapted to enter the notch in the thill ir0n,whereby to holdthe thill iron in an elevated position, substantially as set forth. Y

3. Ina thill coupling, the combination with a clip and arms or earsprojectingtherefrom, of a thill iron mounted between said arms or earsand having a recess therein, a spring located between the arms or earsof the clip and having shoulders to project over and under the same, anda knob or enlargement at the free end of said spring adapted to enterthe recess in the thill iron, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

GEO. W. POST. Witnesses:

B. L. SHEPARD, FRANK J. WoLFF.

ICO

